paper 2 - chen jiaheng

Mr. Chen Jiaheng

Mr. Chen Jiaheng

Chief Engineer

POWERCHINA Kunming Engineering Corporation

Professor

Registered Electric Engineer

Project Manager and Chief Engineer

Power System Planning for the Republic of the Union of Myanmar

1. POWERCHINA

2. POWERCHINA Kunming Engineering CorporationKHIDI

3. Myanmar Power System Planning

4. Present status of Myanmar Power Grid

5. Myanmar Electric Power Demand Forecast

6. Myanmar Energy Resources


8. Innovative Technologies for Long Distance Power Transmission

for Improved Frequency And Voltage Control

9. Conclusion

POWERCHINA has 101 subordinate enterprises and

200,000 employees. Its total asset is $57 billion USD,

annual revenue is $37 billion USD

POWERCHINA is a group engaged in hydro-electric engineering,

infrastructure construction, investment, planning and design,

engineering construction, equipment manufacturing and operation

management.

Integration ability and achievements for hydro-electric

construction is the No.1 in the world.

POWERCHINA ranks

313th of the Fortune Global 500 in 2014

14th of the Top 200 International Contractors

15th of the Global Top 150 Engineering Design Companies

Business has extended to more than 90 countries and regions.

POWERCHINA Kunming Engineering Corporation

KHIDI is a subordinate enterprise of POWERCHINA,

it was established in 1957.

KHIDI has 1,644 employees.

KHIDI is engaged in survey, design, scientific research, consulting,

construction supervision, EPC contracting, investment of the

renewable energy and municipal engineering projects such as

hydropower, wind power, solar power and thermal power.

KHIDI has designed more than 450 hydropower projects with

the total installed capacity of 26,400MW over the past five

decades.

More than 60 hydropower projects with the total installed

capacity of 36,000MW are under designing.

KHIDI has already possessed a lot of talented engineers with rich

engineering and practical experience.

KHIDI has successfully executed many projects in Myanmar.

No. Project NameInstalled

CapacityIntroduction Year

1 Lubuge 4150MW Clay Core Earth-Rock Dam, 103.8m 1988

2 Manwan 5250MW Concrete Gravity Dam, 132m 1993

3 Tianshengqiao-1 4300MW Concrete Face Rock-filled Dam, 178m 1998

4 Jinghong 5350MW RCC Gravity Dam, 108m 2008

5 Xiaowan 6700MW Concrete Arch Dam, 294.5m 2009

6 Jinanqiao 4600MW RCC Gravity Dam, 160m 2011

7 Nuozhadu 9650MW Clay Core Earth-Rock Dam, 261.5m 2012

8 Ahai 5400MW RCC Gravity Dam, 132m 2013

9 Liyuan 4600MW Concrete Face Rock-filled Dam, 155m 2014

Installed capacity: 6700 MW; Reservoir volume: 14.9109m

Dam type: 294.5m Double Curvature Concrete Arch Dam

Installed capacity: 9650 MW; Reservoir volume: 23.7109m

Dam type: 261.5m Clay Core Earth-Rock Dam


CapacityIntroduction Year

1 Kyaukme 22MW HPP, 1995

2 Zawgyi 36MW HPP, 1996

3 Nam Hkan Hka 41250kW HPP, 1997

4 Songpu 32.5MW HPP, 1999

5 Zaungtu 210MW HPP, 2000

6 Paunglaung 485MVA HPP, 2004

7 Shweli-1 6100MW HPP, 2008

8Fresh Water

Supply Works 810,000m3

EPCMaday Island, Kyaukpyu, Rakhine State

2012

9 Power System Planning for the Republic of the Union of Myanmar 2012~2014


CapacityIntroduction

1 Laza 3000MW HPP

2Ngaw Chaing

Hka Cascades1200MW

Gawlan (100MW), Wuzhongze (60MW),

Hkamkawn (140MW), Tongxinqiao

(320MW), Lawng Din (580MW)

3 Kun Long 1400MW HPP

4 Nao Pha 1200MW HPP

5 Man Tong 225MW HPP

6 Nam Hka 210MW HPP BOT

7 Shweli II 520MW HPP

8 Ywathit 4770MW HPP

3.1

3.2

Electric power industry is the foundation of a countrys economy, it

plays an irreplaceable role in national economic development. A

scientific and sound system planning is the premise for safe, reliable

and economical operation of the electric power system. Power

system planning can guide the construction of power sources and

power grid, can effectively recommend the schedule for

construction of electric power projects and balance the investment

for safe, stable and economical operation of power grid, can

promote fast and healthy economic development and enable sound

and high-efficiency utilization of energy and natural resources to

gain maximum economic and social benefits. Thus, a reasonable

power system planning should be proposed as early as possible.

Myanmar Power System Planning is donated by China Three Gorges Corporation.

A project team is set up

composed of counterpart

engineers from Ministry

of Electric Power (MOEP)

of Myanmar and

POWERCHINA

Kunming Engineering

Corporation (KHIDI).

With two-year joint efforts made by China and Myanmar counterpart

engineers, the planning study reports in three stages have been completed.

Based upon the three-stage study reports, Myanmar Power System

Planning (Comprehensive Volume) is proposed with 5 technical

supporting reports:

Myanmar Power System Planning

Power Load Status and Power Demand Forecast

Existing Power System and Renovation Suggestions

Power and Energy Balance and Power Grid Planning

Electrical Calculations and Analysis for Target Years

Attached Drawings Atlas

4.2

4.1

4.3

0500

1000

1500

2000

2500

3000

804982

1171

1690

2850.9

Installed Power Source Capacity from 1990 to 2011

Installed Capacity for Different Kinds of Power Plant in 2011

Item Quantity Capacity (MW) Proportion (%)

Hydropower Plant 18 2016 70.7%

Gas-turbine Power

Plant10 714.9 25.1%

Coal-fired Power

Plant1 120 4.2%

Total 29 2850.9 100%

Item 230kV 132kV

LineQuantity (No.) 44 38

Length (km) 4153 2383

SubstationQuantity (No.) 26 19

Capacity (MVA) 3080 1022

5.3

5.2

5.1

5.4

Power demand forecast is an important part and also a very

complex work for power system planning.

Based on our achievements of

Myanmar Economic Development Trend Analysis

Myanmar Population Forecast

Myanmar GDP Forecast

Myanmar Power Market Development Trend Analysis

Many methods are adopted for Myanmar Electric Power

Demand Forecast and their results are checked by each other in

order to make the forecast accurate.

Power Demand Forecast for Each Division and State

Total Electric Power Demand for Myanmar

Characteristics Forecast of Annual Load in 2020

Characteristics Forecast of Annual Load in 2030

Typical Daily Load Forecast in Wet and Dry Seasons in 2020

Typical Daily Load Forecast in Wet and Dry Seasons in 2030

6.1

6.2

6.3

6.5

6.4

Total proven reserves of conventional energy resources in

Myanmar are equivalent to 11.91 billion tons of standard

coal. Economically exploitable potential of hydropower is

48,550MW and accounting for 66% of total exploitable

reserves of all energy resources. Available reserve of coal is

488 million tons and accounting for 3% of total exploitable

reserves of all energy resources. Proven reserve of oil is

1.31 billion barrels and accounting for 2% of total

exploitable reserves of all energy resources. Proven

reserves of natural gas is 2,540 billion m3 and making up

29% of total exploitable reserves of all energy resources.

Proportion of Conventional Energy Resources of Myanmar

66%

3%

29%

2%

Hydropower

Nature gas

Oil

Coal

In Myanmar, utilization of wind power is just at the

beginning. Exploitable potential of wind power in

Myanmar is estimated to be 365TWh/Year. Wind power

resources are rich in Chin State, Shan State, coastal

regions and hilly areas in central Myanmar.

Entrusted by MOEPKHIDI has conducted the windpower planning work in the four regions of Yangon, Chin,

Ayeyarwady and Rakhine. KHIDIs investigation shows

the total capacity of wind power in the four regions is

more than 3,000MW. Eight towers have been set up, wind

data collected have been analyzed. KHIDI has launched

wind farm selection work.

Application of solar energy

in Myanmar remains at

initial stage. Exploitable

potential of solar energy in

Myanmar is estimated to be

5,2000TWh/Year. Central

arid areas are rich in solar

energy. In dry season, solar

radiation amounts to

5kWh/m2/Day.

Myanmar is rich in

geothermal resource, 93

geothermal sites have

been discovered.

Hydropower resource is the major energy resource for

Myanmar, it is mostly concentrated on the upper Ayeyarwady

River in north part and the Thanlwin River in east part.

Power loads of Myanmar are concentrated in the South-

Central Region: Mandalay, Naypyidaw and Yangon.

Owing to the contradiction between power source and load

distribution, Myanmar power grid shows a general trend of

power flow transmitted from north to south.

To meet the requirement of long-distance power transmission

with huge flow capacity, Extra-high Voltage (EHV) network

is the inevitable choice for future development of Myanmar

power grid.

Three main power transmission channels from north to south

Based on the existing 230kV transmission line, one 500kV AC double-

circuit main channel shall be built along the west and the east part

respectively, while one 600kV DC transmission channel shall be set

up for direct power transmission from north of Myanmar to Yangon.

The 500kV AC West Channel and the 600kV DC channel shall be

able to transmit the electric power from the hydropower plants on the

mainstream and tributaries of Ayeyarwady River.

The 500kV AC East Channel shall be able to transmit the electric

power from the hydropower plants on the mainstream and tributaries

of Thanlwin River.

One receiving-end looped network in south

This refers to the future 500kV double-circuit looped network

surrounding Yangon region via Talkgyi - Kamarnat - Thanylin -

Twante - Katwe Talkgyi.

It will provide a safe, reliable platform for electric power

collection and distribution at the load center.

8.Innovative Technologies for Long Distance Power Transmission




1) Power System Planning

Big load should be supplied by strong grid, strong grid

should be connected with big substations by reliable

power lines, and big substations should be supported by

big power plants.

A scientific and practical system planning is the premise

for safe, reliable and economical operation of the power

system. It is also the footstone for the Frequency Stability

and Voltage Control of the power system.



2) Power Source Composition

The balance of demand & supply is critical for the

Frequency Stability and Voltage Control.

The installed capacity and composition of power sources

should meet the requirements for power balance, electricity

quantity balance and reasonable power flow in different

seasons and different operating modes. Sufficient backup

capacity and peak load regulating capacity should also be

considered. We suggest that some large and medium-sized

hydropower projects with over-year regulating reservoir be

constructed, some gas turbine and coal-fired power plants

should be installed near the load center.



3) Power Grid Structure

High voltage AC and DC transmission lines should be applied

for long distance and huge capacity of power transmission, to

reduce the transmission loss, and also to keep the Frequency

and Voltage Stable.

The grid structure shall be reasonable and has a high

adaptability, operating flexibility and safety reliability. Proper

planning and design shall be achieved to reinforce, to

coordinate different voltage networks and to simplify the

connection scheme of low voltage networks.



4) On-load Tap Changer

We suggest use on-load tap changer instead of no-load

tap changer to regulate the voltage of main transformer

in the key substations.



5) FACTS: Flexible AC Transmission Systems

At present, Myanmar power grid is equipped with static

VAR compensators.

SVC and SVG dynamic reactive power compensation

equipment are very helpful to maintain reactive power

balance and voltage stability of the grid by their excellent

regulation ability and short response time.

The operation of wind farms and solar power plants in the

future will raise higher requirements on reactive power

balance and voltage stability of the grid. It is urgently

necessary to furnish the power grid with SVC and/or SVG.



6) Automatic Dispatching System

Automatic Dispatching System should be established for

Myanmar Power Grid.

SCADA system should be established for NCC.

SCADA system should be established in PP.

SCADA system should be established in SS.



7) Advanced Intelligent Control Applications

Automatic Generation Control (AGC)

Automatic Voltage Control (AVC)

Power System Stabilizer (PSS)

Automatic High-frequency Generator Shut- down

Automatic Low-frequency Load-shedding

Ladies and gentlemen,

We believe that the rich green energy in Myanmar will surely

be developed with the harmonious coexistence of human and

nature in an active, orderly, scientific and coordinated way

under the instruction of Myanmar government, with the

participation and support of the Myanmar public, with the

responsible practice of international communities and

investors. It will promote the economic and social

development and improve the peoples living in Myanmar.

POWERCHINA, KHIDI will do our best, as always, in the

participation of this progress in contributing our efforts.

paper 2 - chen jiaheng

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